Ball cock valve



H- D. CLEMMONS BALL COCK VALVE May 6, 1952 Filed Feb. 25, 1950 INVENTORHerbert D. Clemmons ATTORN EY Patented May 6, 1952 UNITED STATES PATENTOFFICE BALL COCK VALVE Herbert D. Clemmons, Cheshire, Conn., assignor.to Scovill Manufacturing Company, Waterbury, Conn a corporation ofConnecticut Application February 23, 1950, Serial No. 145,842

One object of this invention is to provide an improved valve silencingmeans that is adjustable to effect a silencing operation of the valveover a wide range of fluid pressure systems in which the valve may beused.

A further object is to provide an improved control Valve of the abovecharacter in which the fluid flow is distributed thinly through a longprogressively increasing conical passageway to effect the silencingoperation.

A still further object is to render the valve self-cleaning in case anysediment is collected in the base of the valve housing, and also toprovide means to catch any large particles of dirt orforeign matter andprevent them from jamming or otherwise obstructing the thin conicalfluid passageway.

A structure which is a preferred embodiment of my invention isillustrated in the accompany: ing drawing, in which;

Fig. 1 is a fragmentary view in side elevation of a ball cock valveembodying features of my invention, parts being broken away and shown invertical section with the valve in closed position.

Fig. 2 is a right end view of the same.

Fig. 3 is a sectional view similar to the upper part of Fig. 1 butshowing the valve in open position, and

Fig. 4 is a perspective view of the silencing control sleeve.

Referring now to the drawing in which like reference numerals indicatelike parts in the several views, the numeral ii! indicates a supply pipeor riser which is mounted within a tank H in the conventional manner.Threadedly attached to the upper end of the riser is a nozzle member I2having an enlarged hollow interior 13 that converges into a dischargeopening M at the upper end of said nozzle. The nozzle i2 terminates atits upper end in a valve seat [6 and the exterior surface of the nozzleis in the form of a relatively long conical face I! that extendsuninterruptedly up to the valve seat It. The nozzle member I2 isprovided with an enlarged shouldered portion i3 belo the conical face I!which portion 18 is threaded into a valve casing 20.

The valve casing 29 has a discharge chamber 2|, an outlet 22 and athreaded bore 23 in axial alignment with the riser Iii. A hush tube 24is connected to the outlet 22 and extends downwardly to a point adjacentthe bottom of the tank I l.

h a jus b e. i en in m e ro ded in thefor-m ofa tubular sleeve 25 havinga threaded section 26 for adjustable engagement with e threaded. r 23 ofhe, casing 2 Th sleeve 25 extends down into the discharge chamber 2| andis formed at its lower end with an inset portion 21 from which dependsan outwardly flaring conical skirt 28 conforming to the angle of thenozzle conical face II. The upper end of the sleeve is integrally formedwith an ann-u-,,

lus ZQ that extends-outwardly from the sleeve 25 and is adapted tooverlie the upper surface. of the valve casing 2B.

The relative position of the conical skirt 2'! to the conical face I! ofthe nozzle l2 determines the silencing effect of the valve mechanism,and when the valve is installed in a fluid supply line of a highpressure flow system the skirt 28 should be adjusted so that there isonly a relatively narrow space 30 provided between the complementalconical surfaces. If the valve is to be installed into a low pressurefluid system then the sleeve 25 is threaded upwardly in the casing 20 toprovide a relatively wider conical space 30 between said complementalconical surfaces. The sleeve 25 may be held in adjusted position by ascrew 3| threaded into a lug 32 at the upper end of casing 20 and whichscrew 3i coactswith the annulus 29 of the adjustable sleeve 25 as shownin Fig. 1.

In order to control the flow of water through the valve, a plunger valve33 is arranged within the sleeve 25 and is provided on its lower endwith a sealing disc 34 of flexible or resilient material and held inplace by a flanged collar 35 threaded to the plunger valve 33. The disc34 is compressed against the nozzle valve seat 16 to close the valve andremoved therefrom for opening the valve by a conventional form ofmechanism as now explained.

The valve casing 28 is provided with an outwardly extending bracket 35disposed oppos te the locking screw SI and provided with upper and lowerpivot eyes 37 and 38. A valve lever 39 is pivoted to the upper bracketeye 3'! as by a thumb screw 46 and has one end engaged in a slot 4| in apost 32 extending upwardly from the plunger valve 33. The opposite endof the valve lever 39 is connected to a float arm 43 by a hinging crosslink M, the float arm in turn being pivotally connected to the bracketlower eye 38 as by screw 45. (See Fig. 1.)

When the plunger valve 33 is opened by the lowering of the float arm5-3, the water first fills the valve chamber 46 in sleeve 25 and is thendirected downwardly through the conical annulus 30 thus breaking downand spreading out the water stream incident to its discharge into thedischarge chamber 2!, thus producing a substantially noiselessdischarge. In view of the fact that the silencing sleeve 25 is threadedinto the casing 20 it may be readily adjusted for maximum operatingsilence of the valve under a wide range of pressure conditions.Furthermore, the silencing sleeve in being removable from the casing 25may be renewed or cleaned as desired.

It is to be noted that the inset portion 21 of the silencing sleeve 25is located some distance below the valve seat It and this provides afree space within the valve chamber 46 within which any large pieces ofdirt or foreign matter may be collected rather than to be forced downinto the conical annulus 30. Also the fact that the lower end of theconical skirt 28 is positioned above the base of the discharge chamber2| precludes the possibility of sediment accumulating and building up atthat part of the chamber to the detriment of the valve efficiency.

By making the valve seat I6 high in the chamber 2 I, I am able cheaplyto provide an unusually long conical surface on the outside of thenozzle l2. A long interior conical surface on the sleeve 25 can easilybe provided to complete the long conical annulus passageway 30 throughwhich the water flows downwardly. The Water in reversing itself washesover the valve seat It keeping it clean and the long downward conicalpassageway 30 provides the optimum silencing effect.

One form of the invention is presented herein for the purpose ofexemplification. It will, however, be appreciated that the invention issusceptible of embodiment in other structurally modified forms comingequally within the scope of the appended claims.

What I claim is:

1. A ball cock comprising in combination a valve casing having a chamberand an interiorly threaded portion at its upper end, 'a nozzle havingmeans for connection to the usual riser supply pipe and projectingupwardly into said chamber and terminating in a valve seat a substantialdistance above the bottom of said chamber, said nozzle member having anexterior conical surface extending uninterruptedly from said valve seatto the bottom of the chamber, a regulating sleeve threaded into the.upper part of said chamber and having at its lower end a skirt with aninterior conical surface surrounding and complemental to the conicalsurface of said nozzle and being spaced therefrom depending upon thelongitudinal adjustment of said regulator for varying the rate of flowthrough the conical annulus between said conical surfaces, which annulusgradually increases in size from closely adjacent said valve seat to apoint closely adjacent the bottom of said chamber, the length of saidconical annulus being substantially greater than its diameter at theentrance end adjacent the valve seat to quiet the flow of water over andaway from said valve seat, and a plunger valve within said regulatorsleeve for coaction with said valve seat.

2. A ball cock according to the preceding claim wherein there isprovided between the regulator sleeve and the nozzle end a small chambercommunicating with the entrance to the conical annulus.

HERBERT D. CLEMMONS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 570,811 Montgomery Nov. 3, 18962,038,229 Martin et a1 Apr. 21, 1936 2,111,836 Boyd Mar. 22, 19382,229,600 Park Jan. 21, 1941 2,304,272 Mueller et a1 Dec. 8, 1942

